YASKAWA FP605 Installation & Primary Operation page 117

Code Name
ov2 DC Bus Overvoltage 2
PE1, PE2 PLC Faults
PF Input Phase Loss
PSE JOHB-SMP3 Protocol Set Error
SC Short Circuit/IGBT Failure
SCF Safety Circuit Fault
SEr Speed Search Retries Exceeded
SPCNR Single Phase Converter Not Ready
STPo Motor Step-Out Detected
TiM Keypad Time Not Set
UL3 Undertorque Detection 1
UL4 Undertorque Detection 2
YASKAWA TOEPC7106171FD FP605 DRIVE INSTALLATION & PRIMARY OPERATION
Causes
There is motor hunting.
Speed search does not complete at start when you use
an induction motor in EZOLV control.
The wiring is too long and DC bus voltage is too
large.
The communication option detected a fault.
There is a phase loss in the drive input power.
There is loose wiring in the drive input power
terminals.
The drive input power voltage is changing too much.
There is unsatisfactory balance between voltage
phases.
The main circuit capacitors have become
unserviceable.
• The DIP switches on the JOHB-SMP3 Multi-
Protocol Ethernet Card are at factory default
settings.
• The DIP switches on the JOHB-SMP3 are not set
to a valid protocol.
Overheating caused damage to the motor or the motor
insulation is not satisfactory.
The safety circuit is broken.
The speed search-related parameters are set
incorrectly.
When YC-14 = 0 [Behavior when SPC is Not Ready
= Coast to Stop - Fault], the digital input set to H1-xx
= BE [MFDI Function Selection = Single Phase
Converter Ready NC] deactivated to show the
attached converter is faulted or not ready.
The motor code is set incorrectly for PM Control
Methods.
There is a battery in the keypad, but the date and time
are not set.
A fault occurred on the machine.
Example: There is a broken pulley belt.
A fault occurred on the machine.
Example: There is a broken pulley belt.
20 Troubleshooting
Possible Solutions
• Adjust n1-02 [Hunting Prevention Gain Setting] settings.
• Adjust n8-45 [Speed Feedback Detection Gain] and n8-47 [Pull-
in Current Comp Filter Time] settings.
When E9-01 = 0 [Motor Type Selection = Induction (IM)], set b3-
24 = 2 [Speed Search Method Selection = Current Detection 2].
• Shorten the shielded motor cable.
• Decrease the carrier frequency.
• If the power supply has a neutral ground, switch on the internal
EMC filter.
Refer to the manual for the communication option card.
Correct errors with the wiring for main circuit drive input power.
Tighten the terminal screws to the correct tightening torque.
• Examine the input power for problems.
• Make the drive input power stable.
• If the input power supply is good, examine the magnetic
contactor on the main circuit side for problems.
• Examine the input power for problems.
• Make the drive input power stable.
• Set L8-05 = 0 [Input Phase Loss Protection Sel = Disabled].
• Examine the capacitor maintenance time in monitor U4-05
[CapacitorMaintenance]. If U4-05 is more than 90%, replace the
control board or the drive. For information about replacing the
control board, contact Yaskawa or your nearest sales
representative.
• If drive input power is correct and the fault stays, replace the
control board or the drive. For information about replacing the
control board, contact Yaskawa or your nearest sales
representative.
Remove power from the drive, wait for the charge light to go out,
then set the DIP switches on the JOHB-SMP3 to the desired
protocol.
Note:
• Refer to the instructions packaged with the JOHB-SMP3 for
more information about DIP switch settings.
• "PSE" error occurs only for PRG: 01012 and later, and only
when DIP switches are at their factory default setting.
The "PRG" column on the nameplate on the right side of the
drive identifies the software version. You can also use U1-25
[SoftwareNumber FLASH] to identify the software version.
Measure the motor insulation resistance, and replace the motor if
there is electrical conduction or unserviceable insulation.
• Make sure that you ground the drive correctly and re-energize the
drive.
• If the fault stays, replace the control board or the drive. For
information about replacing the control board, contact Yaskawa
or your nearest sales representative.
• Decrease b3-10 [Speed Estimation Detection Gain].
• Increase b3-17 [Speed Est Retry Current Level].
• Increase b3-18 [Speed Est Retry Detection Time].
• Do Auto-Tuning again.
• Examine the wiring between the drive and converter.
• Examine the error code on converter.
• Set E5-01 [PM Motor Code Selection] correctly as specified by
the motor.
• For specialized motors, refer to the motor test report and set E5-
xx correctly.
Use the keypad to set the date and time.
Examine the machine and remove the cause of the fault.
Examine the machine and remove the cause of the fault.
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